(laughs) >> brown: all right. the book is "short nights of thed that doe catcher, the epic life and immortal photographs of edward curtis." timothy egan, thanks so much. >> thanks for having me, jeff. >> sreenivasan: you can see more of edward curtis's photographs online. we've linked to a collection at northwestern university that includes the entire 20-volumes called "north american indian." >> sreenivasan: and finally tonight, on this day when americans gather to break bread together. we take a second look at a food story far from the u.s. china's growing appetite for meat and dairy products is driving big changes there in everything from farming to food safety. our story is part of our "food for 9 billion" series, a "newshour" partnership with the center for investigative reporting, homelands productions and american public media's "marketplace." it's reported by mary kay magstad, china correspondent for p.r.i.'s "the world." >> reporter: china's people are on the move. from the countryside to the city, hundre